Carbon and globe holder for arc-lamps.



No. 651,248. Paten to d lune 5, I900.

A. HOLLIGER. I

CARBUN AND GLOBE HOLDER FOR' ABC LAMPS.

(Appiication filed Aug. 2,.1899. Benqwed May 8, 1900.)

(N0 Modal.)

/ NJ/E N TOR A 'TTOHNE Y UNITED STATES PATENT OFFICE.

ADOLPH I'IOLLIGER, OF NEW YORK, N. Y.

CARBON AND GLOBE HOLDER FOR ARC- LAMPS.

SPECIFICATION forming part of Letters Patent No. 651,248, dated June 5, 1900.

Application filed August2,1899- Renewed May 8,1900. Serial No. 15,949. (No model.)

To aZZ whom it may concern:

Be it known that I, ADOLPH HOLLIGER, a citizen of Switzerland, residing'at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Carbon and Globe Holders for Arc-Lights, of which the following is a full and complete specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to electric lights, and especially to inclosed arc-lights; and the object thereof is to provide an improved holder or support for the inner globe of lights of this class and an improved holder forthe lower carbon, by means of which the lower carbon maybe more completely consumed, and whereby danger of breaking the globe or overheating the bottom thereof is largely obviated; and with these and other objects in View the invention consists in a globe and carbon holder for inclosed arc-lights constructed as hereinafter described and claimed.

The invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in which- Figure 1 is a sectional side elevation of an arc-light provided with a globe-holder constructed according to my invention, and Fig. 2 a plan view of the globe-holder.

In the drawings forming part of this specification the separate parts of my improvement are designated by the same letters of reference in each of the views, and in said drawings I have shown an arc-light frame comprising a top or cap portion A, side rods B, and a transverse bottom portion C, by which the bottom of the rods 13 are connected, and all these parts may be of the usual or any preferred construction.

In the practice of my invention I provide a holder D, which consists of a body portion of suitable material, and which is designed to support both the lower carbon and the inner globe E, and the holder D is provided with a central vertical socket F, which is open at the top and in which is placed a tubular casing G, which is divided longitudinally to form two similar parts or sections, as shown in Fig. 2, and a pin H is passed through the bottom or neck portion J of the holder D and through the separate parts of the tubular casing G to hold said parts in place. The upper ends of the separate parts or sections of the tubular casing G arecapable of slight lateral movement, and the lower carbon K is placed therein in the usual manner, and a set-screw L is passed through the bottom portion of the holder D, at one side thereof, and bears on one of the parts or sections of the tubular casing G to clamp the lower carbon K in position.

The globe and carbon holder D is provided in the top thereof with an annular chamber M, in the bottom of which is placed a ring N, of asbestos or similar material, and the globe E is provided at the bottom thereof with a cylindrical neck 0, which fits loosely in the annular chamber M, and around the bottom carbon K and resting on the globe-holder within the bottom of the globe is an annular ring or plate I, of asbestos or similar mate- .rial.

The bottom of the globe E is set into the,

holder, as shown in the drawings, and air cannot pass thereunder, and the cap or top A, which may be of the usual or any preferred construction, rests thereon in the usual man ner, and by this construction I avoid the use of metal parts of all kinds around the bottom carbon within the globe, and the bottom carbon may be burned down much lower than is possible with globe-holders of the usual construction.

It is a well-known fact that the bottom carbon will last about thirty hours for each inch thereof, and by means of the construction herein shown and described I save at least one inch of this carbon. It is also customary when the lower carbon is burned out to place the upper carbon in the lower-carbon holder and substitute for the upper carbon a new carbon. In this operation a portion of the upper carbon must be cut off in order to adopt it to the lowerholder. Under ordinary circumstances it is too long; but by means of my improved globe and carbon holder this cutting off of the upper carbon when it is placed in the lower holder is obviated and an other important saving is effected. It also frequently happens in lights of this class that the upper carbon It becomes detached and drops into the bottom of the globe, and as globe-holders have heretofore been constructed there are metal portions around the bottom carbon, and incase the upper carbon becomes detached and drops it will strike on these metal portions and will overheat the same and also break the globe or the bottom thereof, all of which is obviated by my improved globe-holder. If at any time the upper carbon B should become detached, it will drop onto the asbestos ring P and will not injure the globe. My improved globe-holder is also wider at the bottom than is customary with devices of this class, and by reason of this fact the bottom of the globe will not become so readily overheated, even though the lower carbon is burned much lower than is customary.

Although I have shown and described only the inner globe of an inclosed arc-light and means for supporting the same and the lower carbon, it will be understood that in practice the usual outer globe will or may be employed and that the supports thereof, together with the supports for the upper end of with a central bore which opens upwardly, a

carbon-clamp mounted in said bore, and consisting of two members between which a carbon may be inserted, means for binding said carbon-clamp members about said carbon, and a pin passed transversely through said bore and through said clamp members, whereby a slidable engagement exists between said clamp members and said pin, substantially as shown and described.

In testimony that I claim the foregoing as my inventionI have signed my name, in pressen cc of the subscribing witnesses, this 1st day of August, 1890.

ADOLPH I'IOLLIGER.

\Vitnesses:

F. A. STEWART, V. M. VOSLER. 

